Portable Breathing Trainer, Adjustable Breathing Resistance Tool, Breathing Training Tool for Home Gym Workout, Fitness Equipment

It arrived in perfect condition and seems to work perfectly

Very good

Did not find it working or helpfull

Plastic quality is poor

Dont buy this hardest level is fully blocked no breathing

Fell apart but after a bit of time put it back together

Works as intended, not big enough for an adult mouth.

I like it very much but the delivery time is too long and I had too wait more than 2 weeks

I would love to review this but seeing as they scammed me and the picture for proof of delivery is not my door or any door within 3 streets of mine so i cant review the item they won't refund me or send me another one

Have used a couple of times but don't know if having an affect yet

Will take some getting used to but happy with product

Works very well and came in perfect condition

Perfect fitting and overall a great product

not verry effective but I does what is said

Works very well helped my stamina alot

Not really worth it. Does work though

So far so good